Dioxins in Air - Measurement Results of 1998

Dioxins in Air - Measurement Results of 1998

Month
Sampling Date
Concentrations
Central/Western
Tsuen Wan
January  2-1-1998 0.211 0.143
February  7-2-1998 -- 0.349
March  3-3-1988 0.126 0.132
21-3-1998 0.085 --
April  -- -- --
May  2-5-1998 -- 0.033
6-5-1998 -- 0.038
12-5-1998 0.042 --
14-5-1998 0.037 --
June  7-6-1998 0.064 0.043
July  1-7-1998 0.021 --
3-7-1998 -- 0.023
August  6-8-1998 0.019 0.023
September  11-9-1998 0.045 0.060
October 5-10-1998 0.088 0.070
November  10-11-1998 0.108 0.096
December  3-12-1998 0.093 --
Annual Average
0.078 0.092

NOTE :
  1. Figures are 24-hour average concentrations on the day of sampling in pg I-TEQ /m3.
  2. The concentration of dioxins is expressed as toxic equivalent (I-TEQ) concentration of 2,3,7,8 - Tetrachlorodibenzodioxin (TCDD) based on the International Toxic Equivalent Factors (I-TEF) of the North Atlantic Treaty Organization (NATO/CCMS)
  3. For congener concentrations that are lower than the estimated minimum sample detectable level (EMSDL), one half of the EMSDL is used in calculating the I-TEQ concentration
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Last revision date:18:07 22-08-2019